March 1, 2002 Happy XCth From The March-April 2002 Issue Published in the March-April 2002 print issue in the The College Pump section. Most popular There’s a growing movement to curb light pollution. It starts on your front porch. An animal’s journey from grief to love shows how much humans need each other, too. As weight loss medications become more common, Daniel Lieberman discusses the importance of preserving muscle. Explore More From Current Issue Research New Harvard research finds octopuses go beyond sight and touch to find mates. Museums & Collections Science and art capture the microscopic natural world. Research Harvard scientists identify hundreds of genes under selective pressure.